well i finally finished the sub and got it in the water
it sits almost perfectly level and dives well

here is the problem
when i turn the sub left or right on the surface the stern sinks quite alot
it goes under about 3 to 4 inches actually
is this normal underwater operation doesnt seem affected
sub is a robbe U47 dynamic diver with server controlled front planes instead of the mast control

once it comes out of the turn it levels out again
i can counter the stern going under with a little rear dive plane

not sure how to correct this any suggestions would be appreciated

edited for clarity of problem

Last edited by Darksheer on Mon May 18, 2009 12:17 am, edited 1 time in total.

According to a good friend of mine, Herbert Werner (one of the luckiest men alive - he spent better than FOUR YEARS at sea during WWII in a Type VII and lived to tell about it!), the full size boat did exactly the same thing. And I've suffered the same problem in a couple of my boats. Try moving the center of gravity some. I honestly don't remember where it ended up for me (I believe it was moved forward) but I know that after a bunch of trying I pretty much reduced it substantially. Also, trim so that the stern is a little higher than the bow when submerged and standing still. Don't worry about that all that much since when it's underway the automatic leveler will level it out when underway.